Atlautla E-9 Weather Records (MXN00015252)

Record envelope, standing records and threshold days for Atlautla E-9 (MXN00015252), Mexico, with 35 years of record.

Key Facts for Atlautla E-9

Atlautla E-9 (MXN00015252) is a weather station in Mexico at 19.02 latitude and -98.77 longitude, 2,350 m (7,709 ft) above sea level.
The station reports from 1978 to 2012, 35 years of record.
1,464 records set at Atlautla E-9 still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 19.02 latitude, -98.77 longitude.
Elevation: 2,350 m (7,709 ft).
Period of record: 1978 to 2012, 35 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Atlautla E-9. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Atlautla E-9, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	28.9 C (84.0 F)	-4.4 C (24.1 F)	n/a	n/a
Feb	25.6 C (78.1 F)	-5.0 C (23.0 F)	n/a	n/a
Mar	31.7 C (89.1 F)	-2.2 C (28.0 F)	n/a	n/a
Apr	30.0 C (86.0 F)	1.7 C (35.1 F)	n/a	n/a
May	30.0 C (86.0 F)	2.8 C (37.0 F)	n/a	n/a
Jun	28.9 C (84.0 F)	1.7 C (35.1 F)	n/a	n/a
Jul	26.7 C (80.1 F)	5.0 C (41.0 F)	n/a	n/a
Aug	27.8 C (82.0 F)	5.0 C (41.0 F)	n/a	n/a
Sep	28.9 C (84.0 F)	3.9 C (39.0 F)	n/a	n/a
Oct	24.4 C (75.9 F)	1.7 C (35.1 F)	n/a	n/a
Nov	23.9 C (75.0 F)	-0.6 C (30.9 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-3.3 C (26.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Atlautla E-9 still stand. 1986 holds the most, with 318.

Standing records at Atlautla E-9 by the year they were set
Year set	Standing records
1981	30
1982	84
1983	110
1984	69
1985	62
1986	318
1987	184
1988	26
1996	16
2001	96
2002	50
2003	43
2004	81
2005	62
2006	24
2007	25
2008	85
2009	16
2010	29
2011	25
2012	29

Wettest Day of Each Month

Aug: 101.9 mm (4.0 in)

The wettest day on record for each calendar month at Atlautla E-9. The most was 101.9 mm (4.0 in) on 23 August 2011.

Record daily precipitation for each month at Atlautla E-9
Month	Record daily precipitation (mm)	Date
Jan	57.9 mm (2.3 in)	24 January 1980
Feb	80.3 mm (3.2 in)	4 February 2010
Mar	31.8 mm (1.3 in)	2 March 2001
Apr	36.1 mm (1.4 in)	21 April 1982
May	68.8 mm (2.7 in)	20 May 1981
Jun	70.9 mm (2.8 in)	28 June 1982
Jul	78.0 mm (3.1 in)	27 July 2005
Aug	101.9 mm (4.0 in)	23 August 2011
Sep	95.0 mm (3.7 in)	9 September 1979
Oct	79.8 mm (3.1 in)	8 October 2009
Nov	34.8 mm (1.4 in)	7 November 1978
Dec	19.8 mm (0.8 in)	3 December 1979

Period of Record Coverage

1981 to 2012

21 years of record at Atlautla E-9, 1981 to 2012. 11 years have data for under 90 percent of days and are left out of rankings: 1981, 1986, 1987, 1988, 1996, 2003, 2004, 2005 and others.

Days with data per year at Atlautla E-9
Year	Days with data	Share of year	Complete
1981	120	33%	No
1982	365	100%	Yes
1983	365	100%	Yes
1984	364	99%	Yes
1985	340	93%	Yes
1986	214	59%	No
1987	289	79%	No
1988	60	16%	No
1996	31	8%	No
2001	358	98%	Yes
2002	365	100%	Yes
2003	245	67%	No
2004	230	63%	No
2005	284	78%	No
2006	249	68%	No
2007	233	64%	No
2008	363	99%	Yes
2009	334	92%	Yes
2010	302	83%	No
2011	362	99%	Yes
2012	366	100%	Yes

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1978 to 2012

Yearly extremes at Atlautla E-9: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	31.7 C (89.1 F)	2001	27.8 C (82.0 F)	21
Coldest night (TNn)	-5.0 C (23.0 F)	1983	0.0 C (32.0 F)	21
Wettest day (Rx1day)	101.9 mm (4.0 in)	2011	54.4 mm (2.1 in)	24
Wettest five days (Rx5day)	165.6 mm (6.5 in)	2011	98.3 mm (3.9 in)	24
Longest dry spell (CDD)	155 days	2011	61 days	24

Hottest day (TXx)

The hottest day of the year at Atlautla E-9, 1978 to 2012. The record is 31.7 C (89.1 F) in 2001, marked on the chart; the median year is 27.8 C (82.0 F).

Hottest day (TXx) at Atlautla E-9 by year
Year	Hottest day (TXx)
1978	n/a
1979	n/a
1980	n/a
1981	22.8 C (73.0 F)
1982	28.3 C (82.9 F)
1983	28.3 C (82.9 F)
1984	27.8 C (82.0 F)
1985	27.2 C (81.0 F)
1986	26.7 C (80.1 F)
1987	25.6 C (78.1 F)
1988	18.9 C (66.0 F)
1996	17.8 C (64.0 F)
2001	31.7 C (89.1 F)
2002	28.9 C (84.0 F)
2003	30.0 C (86.0 F)
2004	26.7 C (80.1 F)
2005	28.9 C (84.0 F)
2006	27.8 C (82.0 F)
2007	27.8 C (82.0 F)
2008	27.8 C (82.0 F)
2009	26.7 C (80.1 F)
2010	28.9 C (84.0 F)
2011	27.8 C (82.0 F)
2012	28.9 C (84.0 F)

Coldest night (TNn)

The coldest night of the year at Atlautla E-9, 1978 to 2012. The record is -5.0 C (23.0 F) in 1983, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at Atlautla E-9 by year
Year	Coldest night (TNn)
1978	n/a
1979	n/a
1980	n/a
1981	0.6 C (33.1 F)
1982	-3.3 C (26.1 F)
1983	-5.0 C (23.0 F)
1984	-0.6 C (30.9 F)
1985	-4.4 C (24.1 F)
1986	-3.3 C (26.1 F)
1987	0.0 C (32.0 F)
1988	-3.3 C (26.1 F)
1996	0.0 C (32.0 F)
2001	0.6 C (33.1 F)
2002	0.0 C (32.0 F)
2003	0.0 C (32.0 F)
2004	0.0 C (32.0 F)
2005	1.7 C (35.1 F)
2006	0.0 C (32.0 F)
2007	0.0 C (32.0 F)
2008	-2.2 C (28.0 F)
2009	1.7 C (35.1 F)
2010	-1.1 C (30.0 F)
2011	0.6 C (33.1 F)
2012	0.6 C (33.1 F)

Wettest day (Rx1day)

The wettest day of the year at Atlautla E-9, 1978 to 2012. The record is 101.9 mm (4.0 in) in 2011, marked on the chart; the median year is 54.4 mm (2.1 in).

Wettest day (Rx1day) at Atlautla E-9 by year
Year	Wettest day (Rx1day)
1978	53.8 mm (2.1 in)
1979	95.0 mm (3.7 in)
1980	57.9 mm (2.3 in)
1981	68.8 mm (2.7 in)
1982	70.9 mm (2.8 in)
1983	46.5 mm (1.8 in)
1984	39.9 mm (1.6 in)
1985	44.2 mm (1.7 in)
1986	47.5 mm (1.9 in)
1987	47.8 mm (1.9 in)
1988	0.0 mm (0.00 in)
1996	0.0 mm (0.00 in)
2001	37.8 mm (1.5 in)
2002	56.4 mm (2.2 in)
2003	51.3 mm (2.0 in)
2004	53.8 mm (2.1 in)
2005	78.0 mm (3.1 in)
2006	54.9 mm (2.2 in)
2007	42.4 mm (1.7 in)
2008	57.9 mm (2.3 in)
2009	79.8 mm (3.1 in)
2010	80.3 mm (3.2 in)
2011	101.9 mm (4.0 in)
2012	56.9 mm (2.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Atlautla E-9, 1978 to 2012. The record is 165.6 mm (6.5 in) in 2011, marked on the chart; the median year is 98.3 mm (3.9 in).

Wettest five days (Rx5day) at Atlautla E-9 by year
Year	Wettest five days (Rx5day)
1978	83.2 mm (3.3 in)
1979	140.5 mm (5.5 in)
1980	135.4 mm (5.3 in)
1981	97.4 mm (3.8 in)
1982	100.2 mm (3.9 in)
1983	90.1 mm (3.5 in)
1984	124.5 mm (4.9 in)
1985	92.5 mm (3.6 in)
1986	107.5 mm (4.2 in)
1987	57.2 mm (2.3 in)
1988	0.0 mm (0.00 in)
1996	0.0 mm (0.00 in)
2001	77.1 mm (3.0 in)
2002	90.7 mm (3.6 in)
2003	99.1 mm (3.9 in)
2004	78.4 mm (3.1 in)
2005	142.7 mm (5.6 in)
2006	139.0 mm (5.5 in)
2007	60.2 mm (2.4 in)
2008	109.7 mm (4.3 in)
2009	113.4 mm (4.5 in)
2010	85.1 mm (3.4 in)
2011	165.6 mm (6.5 in)
2012	131.4 mm (5.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Atlautla E-9, 1978 to 2012. The record is 155 days in 2011, marked on the chart; the median year is 61 days.

Longest dry spell (CDD) at Atlautla E-9 by year
Year	Longest dry spell (CDD)
1978	22 days
1979	113 days
1980	83 days
1981	36 days
1982	55 days
1983	68 days
1984	64 days
1985	38 days
1986	103 days
1987	86 days
1988	60 days
1996	31 days
2001	51 days
2002	51 days
2003	59 days
2004	61 days
2005	63 days
2006	87 days
2007	44 days
2008	102 days
2009	54 days
2010	37 days
2011	155 days
2012	61 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

Data for Atlautla E-9 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Atlautla E-9 threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).